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May 26, 2022 01:03
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WordPress: Select post parent from another post type
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add_action('admin_menu', function() { | |
remove_meta_box('pageparentdiv', 'chapter', 'normal'); | |
}); | |
add_action('add_meta_boxes', function() { | |
add_meta_box('chapter-parent', 'Part', 'chapter_attributes_meta_box', 'chapter', 'side', 'high'); | |
}); | |
function chapter_attributes_meta_box($post) { | |
$post_type_object = get_post_type_object($post->post_type); | |
if ( $post_type_object->hierarchical ) { | |
$pages = wp_dropdown_pages(array('post_type' => 'part', 'selected' => $post->post_parent, 'name' => 'parent_id', 'show_option_none' => __('(no parent)'), 'sort_column'=> 'menu_order, post_title', 'echo' => 0)); | |
if ( ! empty($pages) ) { | |
echo $pages; | |
} // end empty pages check | |
} // end hierarchical check. | |
} |
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Original from http://janina.tumblr.com/post/3588081423/post-parent-different-type